Corner construction



May' 17, 1949. R. KLOMPARENS 2,470,403

' CORNER CONSTRUCTION Filed July 25, 1945 Patented May 17, 1949 NlT ED s mrns CORNER CNSTRUCTION Roy Klompa'rens, Ro'sslyn,"Va.'

Application July-325', 1945,+Serial No;.606;996 (Cl. 20-432) 3 Claims;

Thisinventionlis an. improved corner post con struction for boxes. It is particularly for use with a boxconstructionwherein the top;-1-bot-tom:and side panels of the *boxare locked itoithecorner posts by dowels which engage; inrregistering grooves, located respectively in the corner posts and-intheedges ofthe panels, as more fully described in my copending application, Ser. No. 500,858, filed September 1, 1943.1

The principal object of this invention is to provide an improved and simplified corner construction which can be made by a few simple cuts with a saw, or on a milling machine. Another object is to provide a corner post construction wherein each of the three corner posts is provided witha tenon which engages the two=tenons on the other two posts, and the. WhOlelocked together as a strong and durable unitary assembly by dowels engageable in registering grooves in the-posts, and in the box panels, all

without the use of nails, bolts, screws, or the like."

The novel structural details will be merc fully described in the accompanying drawings, wherein:

Fig. 1 is a perspective view of one of the corner posts.

Fig. 2 is a perspective view of another of the corner posts,

Fig. 3 is a perspective view of the third corner post.

Fig. 4 is a perspective view of the corner construction partially assembled.

Fig. 5 is a perspective view of the completed corner; and

Fig. 6 is a perspective view, partly in section, showing the joint between a corner post and a box panel.

Referring now to these drawings, corner post A comprises a body portion 2, having panel receiving grooves 4 therein, and including an inner portion 6 which has semi-circular, dowel receiving grooves 8 therein. Body 2 terminates in a fiat end face or shoulder 2, bordered by side faces to and 2b, perpendicular to shoulder 2. Inner portion 6 terminates in a shoulder 6'. Body '2 is also provided with a tenon I0, cut to provide a shoulder ill, in the same plane with face 2'.

Corner post B, Fig. 2, comprises a body portion 22, having panel receiving grooves 24 therein, and including an inner portion 26 having semicircular, dowel receiving grooves 28 therein. Body 22 terminates in a flat face or shoulder 22', bordered by side faces 26a and 26b, perpendicular to 22, and inner portion 26 terminates 2.. intwoshoulders; '26 and26lf; Body 22 also provided with a .tenoniaiillecuti to-provide. a shoulder 30, set back fromface- 22'- and-.inthe same plane with shoulder 26 Corner post C, Fig. 3, comprises a body portion 32', having. panelreceiving grooves 34 therein, and. including an inner portion 36, havin semi-. circular, dowel receiving grooves 38 therein.- Body 32. terminates in fiat-lfaces orshoulders 32 and inner portion' 36-terminatesin a flat face or shoulder. 36 Corner post C is also provided with a thick, heavy tenon. 30, defined by and extending beyond shoulders 32' and 36. This tenon 30-is the main distinguishing feature ofpostO.

Eaclrcorner post -A,.-B andC is provided,as mentioned, withupanel receiving grooves 4, 24 and-34, respectively. Each of: these grooves is for receiving:a panel P,which.may-=be a bottom,- top or-iside panel. Each panel. is provided: with grooves 10'; along .its edg-es; so 'thategrooves 1p register with. grooves 8, 28' or 38;. as the casezmay be, each pair of registering grooves forming a groove for a locking dowel D. This type of joint is disclosed and claimed in my copending application, Ser. No. 500,858, already mentioned. Each corner post A, B and C is interlocked with two panels P, as shown in Fig. 5, and so become interlocked with each other, to form a strong, rigid and durable box.

The improved joint is assembled as follows: Posts A and B are interengaged as in Fig. 4, tenon 30 of B underlying tenon l0 of A, shoulder 26" of B abutting against face 2b of A. This puts the panel grooves 4 and 24 in the same plane and lateral face 2a of A in the same plane with 26a of B. The inner face of tenon l0, part of the upper face of tenon 30, and shoulders 2' and '22 define a four-sided socket S, and lateral faces 2a and 26a, which are in the same plane, form a flat seat for shoulder 36 of C, as will be described. At this stage, a bottom panel P may be inserted in the appropriate lower pair of panel receiving grooves 4 and 24 in both A and B (only the upper pair are visible in Fig. 4) and locked in place by dowels D, thereby locking A and B to each other.

Post C is now added by placing its tenon 39 in socket S, where it fits snugly. The inner face 39a of the tenon fits against face 2', and shoulders 32 fit against the outer, upper edges 4| of A and B. The large shoulder 36' of post C seats against the flat surface formed by 2a and 26a, Fig. 4. The lateral surfaces 36a and 36b of 36 fit against end faces 6' and 26', respectively, Fig, 4, to form the joint of Fig. 5.

A side panel P is now placed in the appropriate groove 4 of A and 34 of C and locked in place by dowels D engaged in registering grooves 8 and 38. A second side panel is now placed in the aDDropriate grooves 24 of B and 34 of C and locked there by dowels D engaged in registering grooves 28 and 38, thus completing the corner. An additional dowel D Fig. 4, may be used, passing through tenon Ill, through hole 40 in tenon 39 and into hole 42 in post B.

There is thus produced a strong, sturdy corner construction for a box or the like, which can be readily manufactured at a reasonable cost, and which may be assembled without nails, bolts, screws, or the like. It may be disassembled by removal of the dowels D and D.

While the improved joint has been described in some detail, it should be understood that the invention is not to be limited to these details, but may be carried out in other ways.

I claim as my invention:

1. A corner construction comprising two corner posts, each having end tenons one of which end tenons is recessed to receive the other in overlapping relation, each corner post having a shoulder at the base of its tenon and perpendicular thereto, the two inner faces of said tenons, together with the shoulder at the base of each of the two tenons, defining a four-sided socket, and a third corner post, having an end tenon seated in said four-sided socket as defined by the tenons and shoulders of the first two corner posts.

2. A corner construction comprising two corner posts, each having end tenons, one of which end tenons is recessed to receive the other in overlapping relation, each corner post having a shoulder at the base of its tenon and perpendicular thereto, the two inner faces of said tenons, together with the shoulder at the base of each of the two tenons, defining a four-sided socket,

4 and a third corner post having an end tenon defined by transverse shoulders at opposite sides of the tenon, said tenon of the third corner post being seated in said four sided socket, and having its transverse shoulders bearing against portions of both of said first two corner posts.

3. A corner construction comprising two corner posts, each having end tenons, one of which is recessed to receive the other in overlapping relation, each corner post further having a transverse shoulder at the base of its tenon, the two inner faces of said tenons, together with the shoulders of the base of each of the two tenons, defining a four-sided socket, each corner post further having lateral faces in substantially the same plane cooperating to form a flat seat; and a third corner post having an end tenon defined by transverse shoulders at opposite sides of the tenon and having a large transverse shoulder intermediate the other two shoulders, the tenon of the third corner post being seated in said foursided socket, with said transverse shoulders bearing against the upper outer edges of the first two posts, and with its said large transverse shoulder bearing against said fiat seat of the first two posts.

ROY KLOMPARENS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 215,642 Mallett May 20, 1879 396,165 Linderman Jan. 15, 1889 501,088 Leaver July 11, 1893 883,489 SchossOW Mar. 31, 1908 FOREIGN PATENTS Number Country Date 780,702 France Feb. 4, 1935 

